书脊

书脊 [shū jǐ]

1. ■ spine; ridge; backbone

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常用词组

1. ■ 书脊工 backer;

2. ■ 书脊滚压机 rollerbacker;

3. ■ 书脊护舌 headcap;

4. ■ 书脊棱带 raised bands;

5. ■ 书脊粘衬 backlining;

6. ■ 书脊凸棱夹钳 band nippers;

7. ■ 书脊凸棱轧线器 band creaser